790% is the change from 50 to 445
Calculation steps:
[( 445 - 50 ) ÷ 50] x 100 = 790%
Formula
Percentage change = [(445 - 50) / 50] x 100
Subtract the new number by the original number
445 - 50 = 395
395 ÷ 50 = 7.9
7.9 x 100 = 790%
Example